Nombre
Implicaciones coevolutivas de las defensas de las urracas frente al parasitismo del críalo: Un estudio a nivel genético (Coevolutionary implications of magpie defences against cuckoo brood parasitism: A study at the genetic level)
Fecha de fin
Fecha de inicio
Martín Gálvez, David
Institución
Universidad de Sheffield (Reino Unido)
Código
NA
Código de acceso
2007/11
Entidad financiera
Secretaría General de Política Científica y Tecnológica, MEC (Mejora y acceso de las Infraestructuras Científicas y Tecnológicas Singulares, ICTS. Plan Nacional I+D+I)
Resumen
Recently, we have found that a microsatellite locus (Ase64) has alleles segregating in
rejecter and accepter magpies (Pica pica) breeding in the population of Guadix, which is
intensely exploited by great spotted cuckoo (Clamator glandarius) brood parasitism. This result suggests a physical link between the Ase64 locus and some gene(s) involved in rejection behaviour. The aim of this project is to study for the first time such host defences at the genetic level, extending the previous analysis to other magpie populations suffering different levels of parasitism (including Doñana), and using the Ase64 locus as a suitable genetic marker of this host defence. The main objectives of this project are: (i) to determine the generality of this genetic marker; (ii) the study of mechanisms explaining the maintenance of genetic variation in host defences; and (iii) the study of environmental conditions affecting phenotypic expression of gene(s) related to ejection of parasitic eggs.
rejecter and accepter magpies (Pica pica) breeding in the population of Guadix, which is
intensely exploited by great spotted cuckoo (Clamator glandarius) brood parasitism. This result suggests a physical link between the Ase64 locus and some gene(s) involved in rejection behaviour. The aim of this project is to study for the first time such host defences at the genetic level, extending the previous analysis to other magpie populations suffering different levels of parasitism (including Doñana), and using the Ase64 locus as a suitable genetic marker of this host defence. The main objectives of this project are: (i) to determine the generality of this genetic marker; (ii) the study of mechanisms explaining the maintenance of genetic variation in host defences; and (iii) the study of environmental conditions affecting phenotypic expression of gene(s) related to ejection of parasitic eggs.